Dodgy banks covering a large part of Europe (7)
I believe the answer is:
balkans
'part of europe' is the definition.
(the Balkans are a part of Europe)
'dodgy banks covering a large' is the wordplay.
'dodgy' indicates an anagram (a dodgy or wrong order of the letters).
'covering' is an insertion indicator.
'large' becomes 'L' (eg in clothes sizes).
'banks' anagrammed gives 'bkans'.
'a'+'l'='al'
'bkans' going around 'al' is 'BALKANS'.
(Other definitions for balkans that I've seen before include "SE Europe region" , "European summits?" , "Area of SE Europe" .)